![]() ![]() Just so happened that where I was I found a GMRS frequency combination that happened to output a spur on the active control channel of the local P25 trunking systems (forced a control channel roll due to an "illegal carrier" error every time we tested it). Well, I found it with a spectrum analyzer.a spur (a harmonic product) nearly 400 MHz above the transmitted frequency nearly 500 mW in strength. Now I know my Wattmeter has a full scale accuracy of ±5% at full scale (in this case 5W full scale, so error is within 250 mW) which means there is a full 500 mW of unaccounted power going somewhere. On frequency, the service monitor (which is a calibrated piece of test equipment) was only showing 2.01 W of output. So to check for distortion I hooked the radios up to a service monitor and found something quite interesting. Hooked up to a Wattmeter and I found the radios to be outputting 2.8 W to 2.9 W.which is within the less than 3 W spec. Programmed them with some GMRS and common business UHF frequencies and went to town. Once upon a time I got a wild whim to test a few of them. Now, the funny thing about the BF-888S specifically is that the radio is spec'd as having an output of "<3 W". Now being someone who makes a living in the two-way radio industry, not only do I have the knowledge but I also have the (not low cost) test equipment to verify that the radio's are doing what they should be doing (one man radio shop kind of thing). Devil is in the details and if the radios are technically within the specifications of the service, is it really a big deal? The answer is that it should not be a big deal. In the US, the BF-888S isn't type accepted for use in Part 90 (commercial service) nor is it type accepted for Part 95 (where our PMR equivalents would be). I have a US commercial license but don't use the Baofeng products for a simple reason related to the BF-888S specifically. We will strive to maintain a fair, inclusive, and positive atmosphere, but we can't please all of the people, all of the time. Mods will remove posts and comments at their discretion for violating this.Ĩ. This includes callsign if they don't have it publicly displayed!Ħ. Do not post another user's personal information. Callsigns displayed must be your own callsigns.ĥ. Keep flair SFW and applicable to the hobby. Do not spam your product, website, blog, YouTube channel or other personal project.Ĥ. No personal attacks, hate speech, name calling, or discriminatory remarks allowed.ģ. Absolutely no military, paramilitary or militia use or discussion.Ģ. No illegal activity or advocacy for illegal activity. Post no individual sales See /r/HamFest Rulesġ. An unofficial source for everything related to Baofeng radios, and other similar modelsĪ sibling subreddit to /r/amateurradio No cross posting allowed to main ![]()
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